Bouncing off the limter...
Thread Starter
Safety Car
Joined: Dec 2004
Posts: 3,565
Likes: 5
From: stafford country, va. Avatar: Me on turn 3 @ Bristol (The World's Fastest Half-Mile)
Bouncing off the limter...
why do some believe that the occasional bounce off the limter is harmful to the engine. i understand about living at the limiter, but the occasional bounce isn't too harmful, just back off a bit.
Team Owner
Joined: Apr 2005
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From: Northern NYs Adirondack Mountains,http://www.visitsacandaga.com.
It DOES set a code in your computer system, and if it shows a lot of bounces in there it could get your service dept. to question a warrenty problem (read, abuse)
I did it the first ride this spring (after a long winter sleep) and got to admit I felt a little stupid about it. I thought better of my driving skills.
(ready for the hecklers now)
Moderator
Joined: Dec 2002
Posts: 40,888
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From: Lakewood Ranch, FL
IMHO it appears if you do the bounce ofen your not paying as much attention to your driving as you should. It happens to all of us at one time or another.
It DOES set a code in your computer system, and if it shows a lot of bounces in there it could get your service dept. to question a warrenty problem (read, abuse)
It DOES set a code in your computer system, and if it shows a lot of bounces in there it could get your service dept. to question a warrenty problem (read, abuse)
Team Owner
Joined: Apr 2005
Posts: 35,747
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From: Northern NYs Adirondack Mountains,http://www.visitsacandaga.com.
Race Director
Joined: Oct 2004
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From: Virginia Bch VA
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St. Jude Donor '06
I've hit mine 3-4 times in the past 2 1/2 years. No problem.
Next install is a shift light to help NN here avoid the possibility.
Next install is a shift light to help NN here avoid the possibility.
Pro
Joined: May 2000
Posts: 610
Likes: 1
From: Midland Texas
St. Jude Donor '09-'11
Sitting on the limiter won't hurt anything any more than constant rpm right under the limiter set point. I have a two step limiter on my Mustang and I have held it at 6800 rpm on the limiter for 20 seconds or so at a time when staging. No problems, but I shift this motor at 8000 rpm.
The limiter setpoint can be raised a few hundred rpm to keep you from hitting it when shifting if desired.
Joe
The limiter setpoint can be raised a few hundred rpm to keep you from hitting it when shifting if desired.
Joe
Race Director
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From: Virginia Bch VA
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St. Jude Donor '06
Pro
Joined: May 2000
Posts: 610
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From: Midland Texas
St. Jude Donor '09-'11
Actually, it won't. Didn't hurt a thing but this was a double overhead cam Ford. Not standard practice, just happens when the track guys had trouble with getting the tree started.
One warning, on a nitrous car, you better have an rpm window switch set below the rev limiter if you are going to hit the limiter.
Joe
One warning, on a nitrous car, you better have an rpm window switch set below the rev limiter if you are going to hit the limiter.
Joe
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Melting Slicks
Joined: Aug 2005
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These engines will withstand hitting the rev limiter plenty of times. That's why it there. Now upping the limiter on stock springs and banging on the limiter regularly and you might have a problem.
The LS2 timing chain setup is pretty strong. Just don't make it a habit.
The LS2 timing chain setup is pretty strong. Just don't make it a habit.
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Race Director
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From: Virginia Bch VA
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St. Jude Donor '06
Melting Slicks
Joined: Nov 2002
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From: Allentown PA
I've seen many, many guys sit on the rev limiter for 10-15 seconds while doing burnouts. While it's not a good idea, it wont hurt the engine. There is an error factor built in to the car, so if it redlines at 6,500, it will probably rev the at least 7,000 without harm.
Melting Slicks
Joined: Sep 2004
Posts: 3,488
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From: Long Island NY
I just cannot understand why anybody would want to bounce off the limiter purposely. 
Seems to me nothing more than blatant and unnecessary abuse of the car... much like frying the tires. 
And many of those who do that are afraid to take their cars out in the rain. 
Beat the living cr*p out of the drivetrain but DON'T dare get dust on the paint!!!
I hit a rev limiter once... accidentally... one a motorcycle... redline was about 10,500 rpm and think I hit around 11,000 rpm before I felt the limiter... then shifted instantly... I did win the race though.
Seems to me nothing more than blatant and unnecessary abuse of the car... much like frying the tires. And many of those who do that are afraid to take their cars out in the rain. Beat the living cr*p out of the drivetrain but DON'T dare get dust on the paint!!! I hit a rev limiter once... accidentally... one a motorcycle... redline was about 10,500 rpm and think I hit around 11,000 rpm before I felt the limiter... then shifted instantly... I did win the race though.